Maintenance Bond in India: What It Is and Why the 10-Year DLP Changes Everything
- Rajeev Chari
- Jul 15
- 12 min read
TL;DR
MoRTH doubled the defect liability period for EPC road contracts from 5 to 10 years in October 2024. A contractor finishing a road project today carries post-handover security obligations for a decade, typically through an extended performance bank guarantee with cash margin still blocked.
A maintenance bond is a separate insurance surety bond issued at practical completion. It replaces the performance security during the DLP window, releasing the performance BG and freeing the capital locked in it.
IRDAI (Surety Insurance Contracts) Guidelines 2022 explicitly recognise maintenance and defect liability bonds as one of six surety categories. The insurance surety bond route carries no cash margin requirement and does not consume banking limits.
DLP duration varies by framework: 6 to 12 months under CPWD GCC, and up to 10 years for EPC road contracts under MoRTH. The bond structure, face value, and cost differ significantly across these frameworks.
You have just received the completion certificate on a ₹60 crore EPC national highway project. Construction took four years. You submitted a performance bank guarantee before the work started. That BG, with ₹6 crore in cash margin blocked at your bank, is still sitting there. The project is done. The capital is not free.
Under MoRTH's October 2024 policy, your defect liability period has just doubled to 10 years. Unless you act, that performance BG stays locked until 2036. A maintenance bond is what gets it released.
This article explains what a maintenance bond is, what defects it covers, how it works under India's regulatory framework, what it costs, and how to get one.
What Is a Maintenance Bond?
A maintenance bond (also called a defect liability bond or warranty bond) is an insurance surety bond or bank guarantee issued to a project owner after project completion. It guarantees that if the contractor fails to rectify defects that surface during the defect liability period, the insurer or bank will compensate the project owner.
IRDAI (Surety Insurance Contracts) Guidelines 2022 explicitly recognise maintenance and defect liability bonds as one of six surety categories that licensed insurers can write in India. The instrument is purpose-built for the post-handover phase: it picks up exactly where the performance bond leaves off.
Maintenance Bond at a Glance
Feature | Description |
What it covers | Contractor's defect rectification obligations during the DLP |
Who issues it | IRDAI-licensed insurer (insurance surety bond) or scheduled bank (bank guarantee) |
When it is issued | At or before practical completion / project handover |
Bond value | Typically 5 to 10% of contract value, as specified in tender |
Validity | From handover to end of defect liability period |
Claim trigger | Contractor fails to rectify notified defects within the DLP |
What Defects Does a Maintenance Bond Cover?
Not every defect that appears after handover is claimable under a maintenance bond. The bond covers failures that trace back to the contractor's work, materials, or design (where design was the contractor's responsibility under EPC terms). It does not cover damage that originates from other causes.
Covered
Workmanship defects are the most common category. These include poor concrete mixing, incorrect reinforcement placement, substandard finishing, faulty waterproofing, and joints that were not sealed to specification. If the defect traces back to how the work was executed, it falls within the contractor's rectification obligation and therefore within the bond's coverage.
Material defects arise when the contractor used materials that did not meet contract specifications, or that were defective at supply. If substandard materials were incorporated into the work, the resulting failure is the contractor's responsibility.
Design defects in EPC contracts are covered where the contractor was responsible for design under the EPC scope. If the defect traces back to an error in the contractor's design, the maintenance bond covers the owner's claim.
Not Covered
Normal wear and tear is not claimable. Roads, buildings, and structures deteriorate with use and time. Maintenance bonds cover construction failures, not scheduled maintenance.
Owner-caused damage is excluded. If the project owner or their tenants caused the defect through misuse, modification, or negligence, the claim does not stand against the contractor's maintenance bond.
Force majeure damage falls outside the bond's scope. Floods, earthquakes, and other events beyond the contractor's control are not construction defects.
Defects notified outside the DLP window cannot be claimed. If the bond has expired or the defect notice was issued after the DLP ended, the owner has no recourse under the bond for that defect.
Defect Type | Claimable Under Maintenance Bond? |
Cracking from poor concrete mix | Yes |
Roof leaks from faulty waterproofing | Yes |
Substandard road surface from inferior materials | Yes |
Design error by contractor (EPC) | Yes |
Wear and tear on road surface after 8 years | No |
Damage from flooding | No |
Structural failure caused by owner's modification | No |
Defect notified after bond expiry | No |
What MoRTH's 10-Year DLP Means for EPC Contractors
What Changed in October 2024
On October 23, 2024, Union Minister Nitin Gadkari announced that MoRTH would double the defect liability period for EPC road contracts from 5 to 10 years. The rationale was direct: roads built under the EPC model were deteriorating within 3 years of opening. Under HAM and BOT models, contractors bear long-term maintenance responsibility and therefore build better roads. The 10-year DLP brings that accountability to EPC contracts.
For a contractor finishing a national highway project in 2026, the DLP now runs until 2036.
Why Extending the Performance Bond Is the Wrong Answer
The default response in Indian contracting practice is to extend the performance bank guarantee through the entire DLP. For a 12-month DLP, this is manageable. For a 10-year DLP, it is a structural capital problem.
A performance bond is sized for construction-phase risk, typically 5 to 10% of contract value, and its function is to cover the owner's cost of completing the project if the contractor defaults. That risk disappears at practical completion. What remains during the DLP is a different, more specific risk: that the contractor will fail to repair defects.
The cash margin blocked on a 10-year performance BG extension ties up capital the contractor needs for every new project they win during that decade. For an MSME contractor managing multiple simultaneous contracts, this is not an inconvenience. It is a hard constraint on growth.
A standalone maintenance bond, issued at practical completion, replaces the performance BG for the DLP window. The performance BG is released. The maintenance bond, typically at a lower face value and with no cash margin via the insurance surety bond route, carries the remaining obligation.
How a Maintenance Bond Works
The Three-Party Structure
The maintenance bond is a three-party instrument. The contractor (principal) purchases the bond. The project owner (NHAI, CPWD, a state PWD, or a private developer) is the obligee. The IRDAI-licensed insurer is the surety.
At practical completion, the contractor submits the maintenance bond to the project owner. The project owner confirms its terms match the DLP provisions in the contract and releases the performance security. The maintenance bond then remains live for the full DLP. For context on where the maintenance bond fits within the complete project bond lifecycle, see the types of insurance surety bonds in India guide.
What Triggers a Claim
During the DLP, the project owner's engineer-in-charge issues a written defect notice to the contractor. The contractor has a stipulated period, usually 14 to 28 days depending on the contract, to begin rectification. If the contractor fails to act or the defect is not rectified to the owner's satisfaction, the owner invokes the maintenance bond.
The insurer then either arranges rectification directly or compensates the owner up to the bond's face value. A claim can only be made for defects notified within the bond's validity period. A notice issued after the maintenance bond has expired does not give the owner claim rights under the bond. The insurance surety bond claim and invocation guide covers the documentation and process in detail.
Where the Maintenance Bond Fits: The Full Project Bond Lifecycle
Most MSME contractors are familiar with the bid bond and the performance bond. The maintenance bond is the final instrument in the project security chain. Understanding where it sits helps contractors plan their capital across the full project cycle.
Bond Type | When Issued | What It Covers | Typical Face Value | Validity |
Bid Bond | At tender submission | Contractor's commitment to honour the bid | 2 to 5% of bid value | Bid validity period |
Performance Bond | After LOA, before work begins | Contract execution and completion | 5 to 10% of contract value | Construction period |
Advance Payment Bond | On release of mobilisation advance | Repayment of advance through bill deductions | Equal to advance (sometimes 110%) | Until advance is fully recovered |
Retention Money Bond | Mid-contract | Substitutes withheld retention during execution | Equal to withheld retention | Until DLP end |
Maintenance Bond | At practical completion / handover | Defect rectification during the DLP | 5 to 10% of contract value | DLP duration |
The maintenance bond is the only instrument issued after construction is complete. All others are issued either before or during execution. This means the maintenance bond is the one instrument that can free up capital locked in performance security, by replacing it at the handover gate.
For a detailed guide on the advance payment bond and the retention money bond, those articles cover the mechanics of each instrument in the execution phase.
When Is a Maintenance Bond Required in India?
CPWD Contracts
Under CPWD General Conditions of Contract 2019 (Construction Works), the defect liability period is 6 months for works costing up to ₹10 lakh (except road works) and 12 months for all other works. The security deposit is released in two tranches: half at the issue of the completion certificate, and the remaining half at the end of the DLP once a No Defect Certificate is issued.
A maintenance bond can substitute the retained security deposit portion during the DLP window, allowing the contractor to recover that capital before the DLP ends. For CPWD-specific instrument mechanics, the CPWD insurance surety bond guide covers eligibility and issuance.
NHAI EPC Contracts
NHAI's EPC contracts historically carried a 5-year DLP. Under MoRTH's October 2024 directive, new EPC contracts will carry a 10-year DLP. NHAI Policy Circular 3.1.41/2025 (effective January 2, 2025) confirms that insurance surety bonds are accepted for EPC contract security. A standalone maintenance bond for the 10-year DLP is the natural next instrument for contractors in this segment. See the insurance surety bonds for NHAI contracts guide for the current acceptance framework and tender-level guidance.
Private and Commercial EPC Projects
Maintenance bonds in private contracts (real estate developments, industrial projects, private infrastructure) are at the project owner's discretion. Where DLPs run 12 to 24 months and a contractor's banking limits are under pressure, the insurance surety bond route carries the same capital advantage as in government contracts: no cash margin, no limit consumption.
For residential developers, the Real Estate (Regulation and Development) Act, 2016 under Clause 14(3) requires the developer to rectify structural and workmanship defects notified by homebuyers within 5 years of possession. This creates a parallel post-handover liability that a maintenance bond can cover.
When It Is Required vs. When It Is Discretionary
Framework | DLP Duration | Maintenance Bond Mandatory? | ISB Accepted? |
CPWD GCC 2019 (Construction) | 6 to 12 months | At owner's discretion | Yes, under GFR 2022 amendment |
NHAI EPC (post-2024) | Up to 10 years | Contract-specific | Yes, from January 2025 |
Central Government (GFR) | As per contract | As per contract terms | Yes, since February 2022 |
State Government Contracts | Varies | Depends on state policy | Depends on state policy |
Private / Commercial EPC | As per contract | As specified | Depends on contract terms |
Maintenance Bond vs. Performance Bond: Key Differences After Handover
The most common source of confusion is the assumption that the performance bond already covers the DLP, making a separate maintenance bond unnecessary. In some contracts, the performance bond is formally extended through the DLP. But this extension is structurally suboptimal, particularly when the DLP runs for years.
Feature | Performance Bond | Maintenance Bond |
When issued | Before construction begins | At practical completion / handover |
What it covers | Contractor failing to complete the project | Contractor failing to rectify post-handover defects |
Validity period | Construction period (plus DLP if extended) | DLP only |
Face value | Typically 5 to 10% of contract value | Typically 5 to 10% of contract value (sometimes lower) |
Capital implication | Locks cash margin through construction AND DLP if extended | Releases construction-phase capital at handover; DLP window only is locked |
Claim trigger | Non-completion, abandonment, default during construction | Failure to rectify notified defects within DLP |
For the insurance surety bond vs bank guarantee comparison across all contract security types, that guide runs the full side-by-side analysis.
The IRDAI 60-Month Tenure Cap and Long-Duration DLPs
IRDAI's 2022 guidelines set a maximum bond tenure of 60 months (5 years), including the contract period, maintenance period, and any extensions. For most construction contracts with a 12-month DLP, this limit is not a practical constraint. For NHAI EPC contracts with a 10-year DLP, it creates a renewal requirement that both contractors and project owners need to plan for.
Consider a ₹100 crore NHAI EPC road project with a 4-year construction period and a 10-year DLP. The total project security cycle runs 14 years. A maintenance bond issued at practical completion (year 4) would reach the IRDAI 60-month limit at year 9 from bond issue (i.e., year 13 from project start). The contractor would need to apply for a renewal or replacement bond to cover the final years of the DLP.
There is currently no IRDAI waiver or exception for longer DLPs. Contractors and project owners working on long-DLP contracts should address this in the contract terms at the outset: specify renewal obligations, timelines, and the process for issuing a replacement bond before the initial bond expires. A gap in bond coverage during the DLP, even a short one, gives the owner limited recourse if a defect surfaces during that window.
Practically, the renewal process is similar to the original application. The insurer reviews the contractor's updated financials and the project's defect history during the first bond period. Contractors with a clean DLP record typically find the renewal straightforward.
What a Maintenance Bond Costs: Bank Guarantee vs. Insurance Surety Bond
The cost structure follows the same pattern as other surety instruments. The bank guarantee route carries a commission plus cash margin blocked for the full duration. The insurance surety bond route carries a premium only, with no cash margin and no banking limit consumed.
For a 10-year DLP bond, the difference is significant. Cash margin blocked on a bank guarantee for 10 years is not just idle capital. At 7% opportunity cost on ₹5 lakh to ₹15 lakh of blocked margin, the total cost over a decade runs well beyond the premium on any insurance surety bond.
Maintenance Bond Cost Comparison
Indicative example: ₹50 lakh maintenance bond, 12-month DLP
Cost Component | Bank Guarantee | Insurance Surety Bond |
Commission / Premium | 0.75 to 1.25% per annum | 0.5 to 1.5% per annum |
Cash Margin Blocked | ₹5 lakh to ₹15 lakh (10 to 30%) | Nil |
Banking Limit Used | Yes | No |
Opportunity Cost on Margin | ₹35,000 to ₹1.05 lakh per year at 7% | Nil |
Note: Actual rates vary by insurer, bank, contractor profile, and project type. For a full cost comparison across bond types and contract sizes, see the insurance surety bond cost guide for India.
The key distinction for long DLPs is not the headline rate. A 10-year BG extension means 10 years of cash margin locked, 10 years of banking limit consumed, and 10 years of opportunity cost accumulating. The insurance surety bond route eliminates all three.
How to Get a Maintenance Bond in India
Bank guarantee route: Apply to your relationship bank. The bank will assess your credit facility, require cash margin, and issue the guarantee. Turnaround is typically 3 to 15 working days.
Insurance surety bond route: Apply through an IRDAI-licensed insurer or a platform like axiTrust. The insurer reviews your financial statements, project completion record, and the DLP provisions in your contract. No cash margin is required. Banking limits are not consumed. Turnaround through a structured process is typically 5 to 10 working days.
Core documents required: completion certificate or practical completion letter, signed contract with DLP clause, audited financials for the last 2 to 3 years, completion certificates for prior contracts, and company registration documents.
For eligibility criteria, see the insurance surety bond eligibility guide. For the full application process, see how to apply for an insurance surety bond in India.
axiTrust's platform connects MSME contractors directly to IRDAI-licensed insurers for maintenance bonds and all other insurance surety bond types. The platform handles document submission, underwriting coordination, and bond issuance without requiring the contractor to approach each insurer separately. For the list of PSUs accepting insurance surety bonds in India, that page tracks current acceptance status by department and authority.
Need a maintenance bond for your DLP obligation? axiTrust's platform connects contractors directly to IRDAI-licensed insurers for insurance surety bonds. Get a bond eligibility check and indicative pricing in under 48 hours. No cash margin required. Talk to a consultant.
FAQs
Can a maintenance bond be issued for a project that already has a performance bond with the same insurer?
Yes. Issuing both the performance bond and the maintenance bond through the same insurer is common and practical. The insurer already holds your underwriting data from the performance bond, which can simplify the maintenance bond application and may improve pricing on the second instrument.
What happens if a defect is noticed just before the maintenance bond expires?
If a defect is notified in writing by the project owner before the maintenance bond's expiry date, the claim rights are preserved even if rectification extends beyond the expiry. However, the bond must be valid when the notice is issued. A notice issued after the expiry date does not activate claim rights under the bond.
Is a maintenance bond the same as a retention money bond?
No. A retention money bond releases cash withheld from running bills during construction. A maintenance bond covers the contractor's defect rectification obligation after handover. The two instruments address different phases: the retention money bond operates during execution; the maintenance bond operates after practical completion.
Can a joint venture submit a maintenance bond in its combined name?
Yes. Insurance surety bonds can be issued in the name of a joint venture, provided the insurer is satisfied with the combined financial standing and track record of the JV partners. The documentation requirements are more involved than for a single-entity contractor, but the route is available.
Can a subcontractor obtain a separate maintenance bond for their portion of the work?
Yes. A subcontractor can obtain a maintenance bond covering their specific scope, issued to the main contractor (who acts as obligee in relation to the subcontractor). This protects the main contractor if defects arise from the subcontractor's work during the DLP and the subcontractor fails to rectify them. The main contractor remains liable to the project owner and can pursue the subcontractor's bond to recover rectification costs.
References
IRDAI (Surety Insurance Contracts) Guidelines, 2022. Insurance Regulatory and Development Authority of India. https://irdai.gov.in/documents/37343/366029/IRDAI+(Surety+Insurance+Contracts)+Guidelines+20220103_signed.pdf/3cc74752-2c32-c008-c7a1-303874c2e497
Ministry of Finance, Department of Expenditure. Amendment to General Financial Rules 2017, Rule 171(i), February 2022. https://doe.gov.in/files/whats_new_documents/Amendment_in_General_Financial_Rules_2017_Rule_171_i_Performance_Security_Regarding_2.pdf
NHAI Policy Circular 3.1.41/2025 on Acceptance of Insurance Surety Bonds for EPC Contract Security, January 2, 2025. https://www.foxmandal.in/wp-content/uploads/2025/02/NHAI-Circular-ISB.pdf
CPWD General Conditions of Contract 2019 (Construction Works). Central Public Works Department. https://www.cpwd.gov.in/Publication/GCC_Construction_2019.pdf
Ministry of Road Transport and Highways: Defect Liability Period for EPC Contracts to Be Doubled to 10 Years, October 2024. Business Standard. https://www.business-standard.com/industry/news/govt-to-double-defect-liability-period-under-epc-contracts-to-10-yrs-124102301127_1.html
